237 lines
3.6 KiB
Markdown
237 lines
3.6 KiB
Markdown
---
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sidebar_label: SHOW Statement
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title: SHOW Statement for Metadata
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---
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`SHOW` command can be used to get brief system information. To get details about metatadata, information, and status in the system, please use `select` to query the tables in database `INFORMATION_SCHEMA`.
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## SHOW APPS
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```sql
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SHOW APPS;
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```
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Shows all clients (such as applications) that connect to the cluster.
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## SHOW CLUSTER
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```sql
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SHOW CLUSTER;
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```
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Shows information about the current cluster.
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## SHOW CONNECTIONS
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```sql
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SHOW CONNECTIONS;
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```
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Shows information about connections to the system.
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## SHOW CONSUMERS
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```sql
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SHOW CONSUMERS;
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```
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Shows information about all active consumers in the system.
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## SHOW CREATE DATABASE
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```sql
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SHOW CREATE DATABASE db_name;
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```
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Shows the SQL statement used to create the specified database.
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## SHOW CREATE STABLE
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```sql
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SHOW CREATE STABLE [db_name.]stb_name;
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```
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Shows the SQL statement used to create the specified supertable.
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## SHOW CREATE TABLE
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```sql
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SHOW CREATE TABLE [db_name.]tb_name
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```
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Shows the SQL statement used to create the specified table. This statement can be used on supertables, standard tables, and subtables.
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## SHOW DATABASES
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```sql
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SHOW DATABASES;
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```
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Shows all user-created databases.
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## SHOW DNODES
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```sql
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SHOW DNODES;
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```
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Shows all dnodes in the system.
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## SHOW FUNCTIONS
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```sql
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SHOW FUNCTIONS;
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```
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Shows all user-defined functions in the system.
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## SHOW LICENSE
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```sql
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SHOW LICENSE;
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SHOW GRANTS;
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```
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Shows information about the TDengine Enterprise Edition license.
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Note: TDengine Enterprise Edition only.
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## SHOW INDEXES
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```sql
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SHOW INDEXES FROM tbl_name [FROM db_name];
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```
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Shows indices that have been created.
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## SHOW LOCAL VARIABLES
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```sql
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SHOW LOCAL VARIABLES;
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```
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Shows the working configuration of the client.
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## SHOW MNODES
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```sql
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SHOW MNODES;
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```
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Shows information about mnodes in the system.
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## SHOW QNODES
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```sql
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SHOW QNODES;
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```
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Shows information about qnodes in the system.
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## SHOW SCORES
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```sql
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SHOW SCORES;
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```
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Shows information about the storage space allowed by the license.
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Note: TDengine Enterprise Edition only.
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## SHOW STABLES
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```sql
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SHOW [db_name.]STABLES [LIKE 'pattern'];
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```
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Shows all supertables in the current database. You can use LIKE for fuzzy matching.
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## SHOW STREAMS
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```sql
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SHOW STREAMS;
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```
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Shows information about streams in the system.
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## SHOW SUBSCRIPTIONS
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```sql
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SHOW SUBSCRIPTIONS;
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```
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Shows all subscriptions in the system.
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## SHOW TABLES
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```sql
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SHOW [db_name.]TABLES [LIKE 'pattern'];
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```
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Shows all standard tables and subtables in the current database. You can use LIKE for fuzzy matching.
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## SHOW TABLE DISTRIBUTED
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```sql
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SHOW TABLE DISTRIBUTED table_name;
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```
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Shows how table data is distributed.
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## SHOW TAGS
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```sql
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SHOW TAGS FROM child_table_name [FROM db_name];
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```
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Shows all tag information in a subtable.
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## SHOW TOPICS
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```sql
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SHOW TOPICS;
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```
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Shows all topics in the current database.
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## SHOW TRANSACTIONS
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```sql
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SHOW TRANSACTIONS;
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```
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Shows all running transactions in the system.
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## SHOW USERS
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```sql
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SHOW USERS;
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```
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Shows information about users on the system. This includes user-created users and system-defined users.
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## SHOW VARIABLES
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```sql
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SHOW VARIABLES;
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SHOW DNODE dnode_id VARIABLES;
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```
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Shows the working configuration of the parameters that must be the same on each node. You can also specify a dnode to show the working configuration for that node.
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## SHOW VGROUPS
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```sql
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SHOW [db_name.]VGROUPS;
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```
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Shows information about all vgroups in the system or about the vgroups for a specified database.
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## SHOW VNODES
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```sql
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SHOW VNODES [dnode_name];
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```
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Shows information about all vnodes in the system or about the vnodes for a specified dnode.
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